Combined grader and scraper.



' 1%. 940,139. PATENTEDJAN.1,1907.

- G. E. LE CLAIR,-

C'OMBINED GRADBR AND SGRAPER. APPLICATION rILnn APB.14,1906.

Fig N11 A TTORNE y.

rnx mmms P'srzns co., WASHINGTON, n. c.

UNITED STATES [PATENT OFFICE.

COMBINED GRADER AND SCRAPER.

Specification of Letters Patent.

Patented Jan. 1, 1907.

Application filed April 14:, 1906. Serial No. 311,664.

To all whom it may concern Be it known that I, GEORGE E. LE CLAIR, a

citizen of the United States, residing at Elyria, in the county of Lorain and State of riage, as shown.

Ohio, have invented certain new and useful Improvements in a Combined Grader and Scraper; and I do declare thatthe following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same. I i

My invention relates to a combined grader and scraper; and the invention consists in a grader and scraper which has a two-wheeled carriage and operating mechanism arranged at the front thereof and connected mainly with the tongue or pole and means within reach of the driver seated on the carriage to control the elevations and operation of the scraper, all substantially as shown and described, and particularly pointed out in the claims. r

In the accompanying drawings, Figure 1 is a perspective view of the entire machine as it appears for use; and Fig. 2 is a plan VlGW thereof, showing one of a number of positions to which the scraper or scraper-blade is adapted to be adjusted. Fig- 3 is a longitudinal sectional elevation of the machine on a line corresponding to a; as, Fig. 2, with the tongue in full lines.

As thus shown the machine is carried, in the main, by the two wheels A and axle 13, upon which there is mounted an arch or truss 0 starting from a point at the hub of the wheels at each side and raised to some dis tance above the wheels and provided with a fiat top portion to support other parts and constituting what is hereinafter denominated a carriage.

i D represents the draft tongue or pole, to which the team is hitched, as usual, and E represents the scraper or scraper-blade. Said blade is supported from a carrying-ring F, rigidly secured to the bottom of tongue D relatively to whiflletree G and the car- In this instance the said ring is located well to the front of the carriage and approximately near to the Whittletree and is adapted to carry the scraper across its center and at more or less inclination to one side or another, according to its adjustment, and thus also bring the point ofdraft as near to the scraper as possible.

The scraper or blade is supported upon the said. ring through asegment orsemicircular piece H, which is rotarily adjustable upon said ring, according to the angle at which the blade is to be set, right or left, and a bracket 2 sustains said segment centrally from the tongue .or pole D, while suitable bolts 3 at its ends are adapted to engage through any one of the series of holes 4 at each side, and thus support the front ends of the segments or blade, which is pivoted at 5 to depending extremities of'said segments, as seen in Fig. 3, and at its middle, Fig. 1, where a central support 7 carries the scraper. The inclination at which the blade works on said pivots is controlled by an adjustable brace 6 at each end or side of the machine, and thus it is within the province of the operator to place the blade in any vertical position or angle desired and according to the earth handled and the work to be done.

Behind scraper 'E, I employ a roller or wheel J. Said roller is relatively small and carries a yoke L, which is engaged with the spindle of said roller at each side and extends over and above the tongue, where a crankarm on lever N engages the said yoke and contributes to hold the tongue in any desired elevation. Said lever N is pivotally supported on the tongue, and a suitable pawl thereon is adapted to engage segment n. Support'for the tongue over or upon the said wheel J is derived through the right-angled carrying-pieces O, which have their rear and lower ends engaged with the ends of spindle of wheel J and their forward ends or arms loosely bolted to tongue D well to the front of the whiffletree, as shown in this instance. The adjustments eifected through lever N, yoke L, andwheel J are therefore transmitted to tongue D throughsaid right-angled side supporting-pieces O, which serve to bring a balancing support to the tongue from that point. Otherwise the tongue is supported from truss C at the rear by means ofa fixed cross-piece 8 at its rear end, links 9 extending. practically up therefrom, and rightangled levers 10 and 12, respectively, which are supported on the top of said truss and have pawl-engaging ratchet-segments 13, by which the rear elevation of the tongue is fixed.

It will be noticed that there are two of these levers for controlling the elevation of the tongue through the crossbar 8 at its rear, so that thereby the tongue may be tilted laterally, as may be desirable at any time, according to the levels that are being worked through the connecting-bars andrunning atan i'nwardinclination to the front, where they are loosely bolted to the sides of the tongue'through bolt 16. Connecting barsor rods 15 are fixed near the base or bottomof truss C at their rear, and their front ends'are attached to lugs 17 on ring F, so that" they serve bothas connections and stays for the sides of' said ring from the carriage. A balancing rodor' bar 18 extends from the tongue to the top .of the 'cariage', which helps to maintain the right-angular relations of said parts and the uprightne'ss of the truss.

What I claim is- 1. Ina combined grader and scraper, a set of supporting-wheels, a tongue adjustably suspended at its rear from said Wheels, a roller beneath the rear portion of said tongue, and" means from'whie'h the tongue is-balanc'ed and vertically adjusted between its ends, and a scraper-blade supported from said tongue in'advance'of said roller.

2. In a combined graderand scraper, a two-wheeled carriage, a tongue adjustably suspended at'its rear end from said carriage and side draft-rods from carriage to tongue, a separate roller-support for the tongue between its ends and means to fiXthe elevation ofthe tongue as to said support, aring fixed on said tongue and a scraper adjustably supporte'd from said ring.

3: In a combined grader and scraper; a wheeled carriage, a tongue adjustably suspended'therefrom at its rear end an'd having draft connections with said carriage loosely engagedat their ends, in combination with a roller" supporting the tongue between its ends,- a yoke' over the tongue connected with said rol-ler and an adjusting lever mounted onthe tongue to raise'and lower said yoke, and right-angled c'arriers' engaged at one end on said roller'and at their other ends with said tongue forward of said yoke.

4. In a combined grader and scraper, a suitable wheeled carriage and a tongue loosely supported therefrom at its rear end, in combination with a carrying-roller for the tongue forward of said carriage, a yoke over the tongue having its ends engaged with the spindle of said roller, a lever mounted on the tongue engaged with said yoke and rightangled side supporting pieces for the tongue resting on said roller-spindle at the lower ends and having their upper front ends loosely engaged at the sides of the tongue, and a scrapersupported from said tongue.

5. In a combined grader and scraper, a

tongue, a scraper and a rotarily-adjustable segment supporting said blade from said ring:

7. Thewheeled carriage'and the tongue adjustably supported therefrom, a separate roller beneath the rear portion ofthe tongue, and means to carry the "body of the tongue therefrom, a ring on said tongue'anda seg ment adjustable on said ring, a scraper supported from the ends of said segment and means to fix the inclination ofthe scraperto a vertical plane.

8.- Thecarriage and the tongue adjustably suspended therefrom at'its rear end'and link connections between the carriage and the tongue, an adjustable rollersupport for the tongue between its ends andatransversely arranged scraper adjustablysupported from said tongue in advance of said roller-support; In testimony whereof I sign this specifi cation inthe presence of two witnesses;

GEORGE E. LE CLAIR;

Witnesses:

O. A. SELL, E. M. FISHER. 

